I know, right? That sort of seems like rather critical information that should be shared right away. Even if it’s only known to the other character, you’d think they’d want to shout something like, “This is my fight, for if he dies the consequences will be more terrible than you can imagine,” or something like that? If you’re having trouble conveying that, say something like, “Ok, OOC guys, I need to convey to you all that I need to have an Obi-Wan Kenobi meets Darth Vader on the Death Star moment. My character would know what to say, but I don’t. What’s the best way to convey that?” There’s no shame in playing a character with a higher Int or Wis score than you, you’ll just have to pop OOC for a moment to get some input on what to say or how to say it.

Yeah, that was said back near the beginning of the story arc: http://www.d20monkey.com/2013/02/13/the-task-at-hand/ “As any mage of this world, he and efreeti are one.” Then down in the text under that comic, the author says:
“Today we learn the actual name of Trevor’s character (Kel’Fazat), a little more about the lore of mages in Karthun, and the scope of the task at hand.
Mages are bound to elementals, spirits, or Djinn through ritual. The process is permanent and there is a bit of a taboo or misunderstanding with the entire lore, as you’ve seen already and perpetuated by mages like Qesh’Nax who are bound to evil beings. Both caster and being influence decisions and you may notice that some (like Kel) refer to themselves as “we” rather than “I”.
We’ll see more on mages as the series goes but I will go ahead and let everyone know that Kel’Fazat is bound to an air elemental.